Process of closing jars



Feb' v8 1927' T. l.. TALIAFERRo mlsn PRocEssmF cLosmG JARS Filed March28. 1921 Patented Feb.l 8, 1927.

UNIT-ED s'TATEs "PATENT (OFFICE.

PROCESS 0F CLOSING JARS.

Application med March 28, 1921. Serial No. 456,304,

The invention relates to new and useful improvements in the process ofclosing ref ceptacles, and more particularly closing jars.

An object of the invention is to provide a process of closing jars,whereby the closure may be secured to the jar and the jar sealed by thereforming of the/plastic sealin material.

n the drawings which show by way of illustration one embodiment of theinvention- Figure 1 is a vertical sectional view through a jar having aclosure thereon shaped so that the sealing material may be reformed inaccordance with -my process for securing the closure to. the jar;

Figure 2 shows the sealing material as having been operated upon forclosing the J In carrying out the process, I prefer to use a closureconsisting of a top portion 1 having an inverted channel portlon 2adapted to receive the extreme upper edge of the wall of the jar, whichis indicated at 3. Said channel portion extends into an outwardlyprojecting portion 4 which lits close to the outer wall of the jarthroughout a portion of its length and is then tapered outwardly anddownwardly, as indicated at 5. Formed as a part of this portion 5 is anoutwardly rojecting portion 6, which is provided wit a depending flange7 A pocket is thus formed between the inner wall of the depending flange7 the lower wall of the outwardly projecting p ortion 6, the inner wallof the tapered portion 5 and the outer wall of the jar, which pocket maybe said to terminate in a horizontal line containing the lower edge ofthe flange 7; Located in this 'pocket and projecting therefrom is asealing ring 8 which is preferably formed of rubber which has not beenvulcanized to any great extent, so that this sealing material is veryplastic and is capable of being reformed and maintaining its new shape.Said ringnot only projects froin the pocket, but is o f slightly greaterarea than the cross sectional area of the pocket down to a horizontalline containing the lower edge of the flange 7 This closure per se formsno part of the present invention, but is shown, described and claimed inmy co-pending applicatlon,

`ing the closure on the jar.

the tapered portion of the pocket, formed by the outwardly projectingportion 5 of the closure, causing the sealing material to firmly gripand adhere to the side walls of the pocket and lthe side walls of thejar. This crowding of the sealing material into the pocket brings abouta very tight seal and serves as an eiicient means for r tain- It willbenoted that by In process of' closing, I bring about a seal wit out inanyway bending the metal of the closure. Heretofore, in the closing ofjars, as far as I am aware, there has been a reshaping or bending of themetal and this, of course, brings more or less pressure to bear upon thelass forming the jar, often resulting in brea ing the jar.

By my improved process, I am able to sealv the jar without any bendingof the metal and the onl pressure against the jar is through the p asticsealing material itself, which, of course, is more or less elastic, andthus the breakage is reduced to a minimum. Itis obvious that the jar maybe shaped in various ways and the steps of the process may be greatlyvaried. The essential feature consists in the reshaping or remolding ofthe sealing ,material after the closure is placed on the jar forbringing about the seal.

Having thus described my invention, what I claim as new and desire toSecure by Letters Patent, is:

The process of sealing a jar having a straight outer face comprisingplacing a closure on the jar, which, closure has a depending Hangespaced from the side wall of the jar so as to form a pockettherebetween, placing a ring of sealing material inn 5 pocket, exertinga pressure on capable of heini re-formed and' retninin its re-formed sape in said pocket sai ring being of greater cross-sectiona area. thanthe pocket and 'protruding from the t e`protrudmg portion of the sealingrin while holding the'closure on the 'ar so t at said sealing ring isforced into t e pocket and wedged between the depending flange of theclosure u and the side wall of the 'ar, whereb the closure is sealed onthe Jar and he d on the jar by the sealing material;

t In testimony whereof, I aix my signaure. f

THOMAS LUCIE'N TALIAFERRQ.

